FLOWSERVE A34SR Hydraulic Pneumatic Cylinders

( Brand: Flowserve ), ( Manufacturer Part Number: A34SR ), ( Part Type: Hydraulic Pneumatic Cylinder )

Review FLOWSERVE Used

The **Flowserve A34SR** is a high-performance, soft-seated butterfly valve engineered for demanding applications in industries where reliability, durability, and precise flow control are paramount. Part of Flowserve s renowned **A34 Series**, this valve is specifically designed to deliver superior sealing performance, minimal leakage, and exceptional resistance to harsh operating conditions, making it an ideal choice for water treatment, wastewater management, chemical processing, and other critical fluid-handling systems. Constructed with a **soft elastomeric seat** typically made from materials like EPDM, NBR, or Viton depending on the application requirements, the A34SR ensures a tight, bubble-tight seal even under fluctuating pressures and temperatures, reducing the risk of contamination and operational downtime. Its **double-flanged design** provides robust structural integrity, accommodating a wide range of pipe sizes (typically ranging from 2 to 60 inches, though exact dimensions depend on the specific model and configuration) while maintaining ease of installation and maintenance. The valve s **low torque operation** is achieved through Flowserve s proprietary **lobe-seal disc mechanism**, which minimizes friction and wear, extending the valve s service life while requiring less energy to open or close. This design also contributes to smoother, more consistent flow regulation, reducing pressure drops and turbulence within the system.

The **A34SR** is built to withstand extreme environmental conditions, featuring corrosion-resistant materials such as **stainless steel (SS304, SS316, or duplex alloys)** for the body and shaft, as well as **carbon steel or alloy steel** options for applications demanding higher strength or resistance to abrasion. The valve s **sealed stem** prevents the ingress of contaminants, ensuring long-term reliability in corrosive or particulate-laden fluids, while its **modular design** allows for easy replacement of wear components without dismantling the entire assembly. Additionally, the **A34SR** is equipped with a **pneumatic or electric actuator interface**, enabling integration with automated control systems for precise, remote operation an essential feature in large-scale infrastructure where manual intervention is impractical. Whether deployed in municipal water distribution networks, industrial effluent treatment plants, or chemical storage facilities, this valve excels in maintaining system efficiency while adhering to strict regulatory standards for leakage and emissions.

Beyond its technical specifications, the **A34SR** is distinguished by its **versatility and adaptability**, accommodating a variety of media including water, wastewater, acids, alkalis, and slurries with minimal maintenance. Its **bubble-tight shutoff capability** ensures compliance with stringent environmental and safety protocols, while its **wide range of seat materials** (such as PTFE, Neoprene, or Hypalon) allows for customization based on specific chemical compatibility needs. The valve s **durable construction** also translates to reduced lifecycle costs, as its resistance to cavitation, erosion, and thermal cycling minimizes the frequency of repairs or replacements. Whether specified for new construction projects or retrofitting existing systems, the **Flowserve A34SR** represents a benchmark in butterfly valve technology, combining engineering precision with operational resilience to deliver dependable performance in the most challenging fluid-handling applications.

### **Flowserve A34SR Pump: Pros and Cons**

1. **High Efficiency and Performance** The A34SR is designed for high-pressure applications, making it ideal for industrial processes such as chemical transfer, water treatment, and oil/gas handling. Its robust construction ensures reliable performance under demanding conditions.

2. **Durable Construction** Built with corrosion-resistant materials (such as stainless steel or specialized alloys), the A34SR is well-suited for harsh environments, including those with abrasive or chemically aggressive fluids.

- **Water and wastewater treatment**

- **Oil and gas extraction**

- **Chemical processing**

- **Power generation**

- **Mining and mineral processing**

4. **Modular Design** The pump s modular components allow for easier maintenance, repairs, and upgrades, reducing downtime.

5. **Energy Efficiency** Flowserve s design focuses on minimizing energy consumption while maintaining high flow rates, which can lead to cost savings over time.

6. **Proven Reliability** As a product from a well-established manufacturer (Flowserve), the A34SR benefits from decades of engineering expertise, ensuring long-term dependability.

7. **Compatibility with Various Fluid Types** The pump can handle a broad spectrum of fluids, including clean water, slurries, and corrosive chemicals, depending on the material selection.

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1. **High Initial Cost** Like many high-performance industrial pumps, the A34SR has a significant upfront investment, which may be a barrier for smaller businesses or budget-conscious buyers.

2. **Complex Installation and Maintenance** Due to its advanced design and specialized components, installation and servicing may require trained professionals, increasing labor costs.

3. **Limited Lifespan in Extreme Conditions** While durable, prolonged exposure to highly abrasive or corrosive fluids without proper material selection can reduce the pump s lifespan.

4. **Potential for High Operating Costs** Depending on the application, energy consumption and maintenance requirements may contribute to ongoing expenses.

5. **Availability of Spare Parts** As an older or specialized model, sourcing replacement parts may be more challenging compared to newer or more common pump designs.

6. **Noise and Vibration** High-pressure pumps like the A34SR can generate noise and vibration, which may require additional mitigation measures in sensitive environments.

7. **Customization Requirements** Some applications may necessitate additional modifications or accessories, adding to the overall cost and complexity.

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### **Conclusion**

The **Flowserve A34SR** is a robust, high-performance pump well-suited for demanding industrial applications where reliability, efficiency, and durability are critical. Its strengths lie in its ability to handle aggressive fluids, its modular design, and its broad applicability across multiple sectors. However, the high initial cost, complexity of installation, and potential long-term maintenance expenses must be carefully considered.

For businesses operating in **water treatment, chemical processing, or oil/gas extraction** where performance and longevity are priorities, the A34SR remains a strong choice. Conversely, smaller operations or those with limited budgets may find it more cost-effective to explore alternative, lower-cost pump models that still meet their basic requirements.

### **Recommendation**

If your application demands **high-pressure handling, chemical resistance, and long-term reliability**, the **Flowserve A34SR** is a justified investment. Ensure proper sizing, material selection, and maintenance planning to maximize its efficiency and lifespan. For applications with less demanding conditions or tighter budgets, evaluating newer or more cost-effective pump alternatives may be advisable. Always consult with a Flowserve-certified dealer or engineer to confirm compatibility with your specific process requirements.

Details:

All products are guaranteed to be working but may show signs of use if purchasing a used product. Call to use a shipping service other than the ones listed. FLOWSERVE A34SR / USED DISCONTINUED BY MANUFACTURER, VALVE, PNEUMATIC, VALVE ACTUATOR, SERIES 34. Part Number A34SR.

Sells new and surplus product develops channels to purchase such. Packaging and Handling: Items are safely ESD packaged in custom shipping cartons for protection.

part #: a34sr price

• $100.11

specifications hydraulicylind:

• brand: Flowserve
• mpn: A34sr
• part type: Hydraulic Pneumatic Cylinder

general hydraulicylind:

• Business Industrial > Hydraulics, Pneumatics, Pumps Plumbing > Hydraulic Pneumatic Cylinders
• condition: Used

payments hydraulicylind:

• other
• wallet: Apple-pay
• credit card: Diners-club

shipping hydraulicylind:

• type: Fixed
• service: Standard
• cost: $12.90
• class: Standard
• transit: 27-32 Days

seller hydraulicylind:

• # reviews: 193526
• city: 1 Millennium Dr, Willingboro, NJ 08046
• rating: 99.6%

offer hydraulicylind:

• sold: 0
• quantity: 1
• options: Ship-to-home
• started: March 8, 2026
• availability: In Stock

returns hydraulicylind:

• method: Money back
• time: 30 Days
• paid by: Buyer
• policy: Returns Accepted

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